Brush



May 8, 1923- F. s'rl-:BLER

' BRUSH F'iledDec.

Patented May 8, 1,923.

UNITED STATES PATENT orifice.

FRED STERLER, OF RIVERSIDE, CALIFORNIA, ASSIGNOR 'IOSTEBLER PARKER CO., OF RIVERSIDE, CALIFORNIA, A CORPORATION OF CALIFORNIA.

l BRUSH.

` Application filed December 19, 1921. `Sepia1`No. 523,315.

T all whom. t may concern: A

Be it known that I1 FRED STEBLER, citizen of the United States, residing at Riverside, in the county of ,Riverside and State 5 of California, have invented certain new and useful Improvements in Brushes, of which the following is a specification.

Brushes now employed in fruit treating apparatus for the polishing, brushing or l0 drying of the fruit as yconveyed from one machine, apparatus or point to another, and moreqparticularly set fort-h in Letters Patent o. 1,222,645, dated April 17th, 1917,

are costly to manufacture and to repair when the bristles thereof become worn, and

With the View of increasing the life and efficiency of said brushes and reducingthe cost of manufacture thereof and replacement, the hereinafter described brush has been designed.

This invention consists primarily in providing a brush core either polygonal or cylindrical in cross section with a plurality o-f independent spiral channels or grooves disposed spirally in the peripheral surface thereof from end to end in parallel relation.

for the reception of independent members mounting bristles or other suitable. brush forming elements; and further in grouping bristle holding members mounting bristles of the same length with bristle holding members mounting Abristles of a greater -or less length in such a manner in the grooves as to provide a spiral rib or channel in the peripheral surface of the brush from one end to the other.

Among theobjects of the invention are to provide a construction wherein any given row of bristles is adapted for ready replacement and removal, one wherein the bristle holding member to be associated Awith any particular groove may be positioned vtherein independently yof the others, or a series of said members may be positioned within vtheir respective grooves providing a group of bristles adapted for trimming to provide a brush of any desired exterior cross section on a cylindrical or polygonal core; to provide a core construction of the built up type, which is capable of being cheaply manufactured, and which is adapted for receiving mounting shafts of the well known type.

With the above mentioned and other ob `jects in view'5 the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and se-t forth in the claims hereto appended, it being understood that various changes in the form,fpropor tion, size and minor details of construction within the scope of the claims may be resorted to Without departing from the s irit or sacrificing anyof the advantages o the invention.

To more-fully comprehend the invention reference is directed to the accompanying drawings, 4wherein Figure l is a view in end elevation of the preferred embodiment of my invention disclosing the built up'core.

Figure 2 is a. vieW in plan of a portion of one of my improved brush mounting cores disclosing the independent spiral grooves, and

Figure 3 is a view similar to VFigure 2 illustrating bristles held within said grooves.

Referring tothe drawings wherein like characters of reference designate corresponding parts` l `indicates a shaft extending through a central opening 2 in a rectangular core box 3, the length of the desired brush.v To the faces of said core box 3 are secured thebrush back forming mem# bers 4 grouped about said core boX to provide a polygonal core 51 said members 4 in cross section resembling rhomboidal sectors, and said sectors are secured together throughout their length by the retaining dowels 6 extending angularly from adjacent faces of (2o-operating sectors into adjaT cent sectors. as in` Figure 1 of the drawings. The peripheral surface of the core is formed from end to end with the independent continuous separate spiral grooves v6 each opening at its opposite end preferably at the ends of said core. Within each of said grooves isadapted to be positioned a bristle mountingand retaining member 7, preferably of flexible twisted wires and mounting throughout its length suitable brush bristles preferably arranged in tufts S, the tufts being held Yto the wire in any suitable manner as by twisting several strands of the wire together and about the base of the tufts.

In the drawings, I have illustrated'an embodiment of the invention wherein a spiral groove 9 is formed by the bristleslongitudinally of the brush, and this construction is accomplished preferably in the following manner z-In certain grooves 6, preferably those adjacent each other` and of a number to give the desired Width to the spiral groove 9 in the brush, are positioned the respective bristle mounting members 7 carrying the tufts 8 of the shortest length to form the base 10 of the spiral groovein the brush, and to insure the uniform length of said bristles, the same are preferably trimmed as desired. rlhe intervening grooves 6 than receivetheir bristle holding members 7 mounting'the bristles of the greater length to form the rib 11 of the spiral in the brush, and these bristles arein turn trimmed to a uniform length and in thismanner the brush is provided having a spiral groove 9 in the brush surface.

ln the present embodiment., l have illustrated a core polygonal in cross section, and when building a brush on this type of core. l preferably position the core Within a lathe. and While rotating cut the independent groooves 6 spirally therein. ln this type of brush. it is only necessary to trim the end-s of the bristles to present faces parallel with the core faces in order to provide a polygonal brush if the same is desired; however, the brush may be cylindrical in cross section and if desirable the core may also be cylindrical in cross section and the ends of the bristles thereof may be trimmed to provide a brush polygonal in cross section.

While l have illustrated the invention in the form of a polygonal brush. it is to be understood that l am not to be limited to such as the essence of the present invention is in the providing of separate grooves or channels spirally of a rotatable core. andv each for receiving bristles or brush material carried by independent retaining means enabling the ready removal or replacement of the material in any one groove for the full length of the core Without disturbing the material in any other groove.

rl`he carrying of the brush forming material in mounting members such as twisted Wire enables a user when a 1crush becomes Worn to readily replace the bristles thereof, or of any row thereof, Without returning the brush to the factory, and in some cases Without removing the brush from the machine in which it is mounted. This mounting for the bristles enables a brush factory to carry the same in lengths for ready shipment.

While throughout the specification and claims l have referred to bristles, it is to be understood that any suitable type of brush forming material may be employed, such as wire if desired.

While l have described inthe present application the methodof making the brush, this application is directed to the brush per se.l and the method of making the brush is reA served for the-subject matter of another apA plication.

and a plurality of brush tufts carried by y each mounting member and projecting radially of the core surface.

2. A brush comprising a core provided on its surface with a plurality of annular spiral grooves each independent and separate from the other and extending from one end of the core to the other, a plurality of flexible tutt mountingv members, one positioned Within and `extending from one end to the other of each groove, means for anchoring the ends of each tuft mounting member to the core, and a plurality of brush tufts carried by each mounting member and projecting longitudinally ofthe core surface, the brush tufts of certaintuft mounting members being of a lengthgreater than the tufts of the other tuft mouning members providing a spiral groove disposed longitudinally of the brush and formed by the difference in length of i said tufts.

8. brush comprising a core )rovided on its surface with a plurality o uniformly spaced independent spiral grooves extending from one end .to the otherrthereof, a bristlev mounting member co-operating with each groove for its full length, bristles carried throughout the length of each member and held thereby radially of the core affording a bristle surface surrounding the core, the bristles of certain members being of a length greater than those of other members aitorduw a spiral rib extending longitudinally throughout the length of the brush.

4f. A brush comprising a core provided on its surface with a plurality of uniformly spaced independent spiral grooves each eX- teuding continuously from one end to the other thereof. a bristle mounting member cooperating with each' groove for its full length. bristles carried by each member throughout its full length and held therebyradially of the core adording a bristle surface surrounding the core, the bristles carried by certain mounting members being shorter than those of the other mounting members. and said short bristle mountin members being grouped providing a spira rib extending longitudinally throughout the length of the brush.

A. brush comprising a core provided on its surface with a plurality of uniformly spaced independent spiral grooves, each. extending lll lll

continuously Vfrom lone end to the other thereof, a bristle mountingmember co-operating with each groove for its full length, bristles carried by each member throughout its full `length 'and held thereby radially of the core affording a bristle surface surrounding the core, each of said mounting members adapted. for removal fromfthe core as a unit and p independently of each other.

6. A brush comprising acore provided on its surface .with a plurality of uniformly spaced independent spiral grooves, each extending contlnuously from one end to the other thereof, a bristle mounting member co-operatingwith each groove for its full length, bristles carried by each member throughout its full length and held thereby radially of thel core its surface with' a plurality of uniformly' spaced independent spiral grooves each extending continuously from one end to the other thereof, a bristle mounting member co-operating With each groove for its full length, bristles carried by each member throughout its full length and held thereby radially of the core affording a bristle surface surrounding the core, the bristles carried by shorter than those of the other mounting members and said short bristle .mounting members being grouped providing a spiral rib extending longitudinally throughout the length ofthe brush ,the bristle surface of said brush being polygonal in cross section afordinga plurallty of facesrextending longitudinally throughout the length of the brush. v

8. A brush for the described purpose comprising a hollow core box, a plurality of brush back formingwmembers carried thereby and enclosing the "same, said members/being substantially rhomboidal in cross section With corresponding side edges in Contact, their peripheries forming a substantially cylindrical bristle mounting roller, means for unitingsaid members about said core, said memberson their periphery mounting ra` dially disposed brush forming bristles.-

9. brush for the described urpose comprising a tubular built up core ox, substantially rectangular in cross section, a plurality of brushv back forming members carried thereby and enclosing the same, means for uniting. said members about said core lwith their peripheries forming a substantially cylindrical bristlemounting roller, said roller on its brush` rming bristles.

In testimony lwhereof I have signed. my name to this specification.

FRED sTEBLER.

certain mounting members being periphery mounting a plurality of` a'- 

